474 



(Attachments to Mr. Douglas' statement follow :) 



NRI 

 S'PECIAL 



R'EPORT 

 No. 3 



JULY 1970 



Ff 





NATURAL 



RESOURCES 



INSTITUTE 



UN1V251S1TY of' MARYLAND 



GSOSS PHYSICAL 



AND 



BIOLOGICAL EFFECT! 



t\PUi^i\ 



IN 



FINAL REPORT 



to the 



Bureau of Sport Fisheries ond Wildlife 



United States Department of the Interior 



Under Contract 14-1 6-0005-2096 



